|Publication number||US7410366 B2|
|Application number||US 11/510,201|
|Publication date||Aug 12, 2008|
|Filing date||Aug 25, 2006|
|Priority date||Aug 25, 2006|
|Also published as||CN201081823Y, US20080050951|
|Publication number||11510201, 510201, US 7410366 B2, US 7410366B2, US-B2-7410366, US7410366 B2, US7410366B2|
|Original Assignee||Hon Hai Precision Ind. Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (14), Classifications (9), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is related to U.S. patent application Ser. No. 11/481,672, filed on Jul. 5, 2006, and entitled “ELECTRICAL CONNECTOR ASSEMBLY HAVING IMPROVED SHELL”, which has the same applicant and assignee as the present invention. The disclosure of related application is incorporated herein by reference.
1. Field of the Invention
The present invention relates generally to an electrical connector assembly, and more particularly to an electrical connector assembly for transmitting high-speed signals between two electrical devices.
2. Description of Related Arts
DisplayPort is a new digital display interface standard (approved in May 2006) put forth by the VESA (Video Electronics Standards Association). The standard defines a new license-free state-of-the-art digital audio/video interconnect, intended to be used primarily between a computer and its display-monitor, or a computer and a home-theater system. It is with many advantages relative to HDMI (High Definition Multimedia Interface) and DVI (Digital Visual Interface), such as 10 Gbit/s forward link channel supports high resolution monitors, Royalty free except for encryption portion while HDMI is not, and Supports internal and external connections so that one standard can be used by computer makers reducing costs etc. A displayport connector comprises a metal shell, an insulative housing received in the metal shell and with a plurality of terminals received therein, a plurality of cables respectively electrically connected with the terminals, a dielectric housing over-molded to the shell and the cables.
As is well known in this art, such a high performance type connectors are quite small or miniaturized and, consequently, the terminals are very closely spaced. Consequently, there exists a never-ending problem of noise or crosstalk between adjacent terminals, particularly in elongated straight/parallel portions of the terminals. Efforts have been made to reduce or even eliminate the crosstalk in variety of electrical applications such as providing ground planes on the connector, and coupling filter components, such as capacitor filters, between the terminals and the ground plane. Adding such additional components as coupling filter components to such miniaturized connectors is difficult and costly.
An electrical connector assembly is, therefore, desired that provides high performance data transmission, that is simple and economical to produce, and that facilitates optimum data transfer with increasing frequency of transmission without signal degradation due to the crosstalk and EMI.
Accordingly, the object of the present invention is to provide an electrical connector assembly for high performance applications with enhanced corsstalk compensation features.
Accordingly, another object of the present invention is to provide an electrical connector assembly for high performance data transmission that is simple and economical to produce.
To achieve the above object, an electrical connector assembly in according with the present invention comprises an insulative housing defining a mating direction, a plurality of terminals received in the insulative housing along the mating direction, a printed circuit board attached to the insulative housing and electrically connected to the terminals and a cable comprising a plurality of conductors electrically attached to the printed circuit board. Each terminal has a mating portion, a tail portion and an enlarged interconnecting portion connecting with the mating portion and the tail portion. The terminals further comprise a plurality of first terminals for transmitting signal and a plurality of second terminals for transmitting power, the first terminals are arranged in a line along the transversal direction perpendicular to the mating direction, the enlarged interconnecting portions of the first terminals are parallel to one another and separated by a dielectric at predetermined distance such that a capacitor is formed.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
The upper wall 12 comprises a pair of lateral portions 121 respectively disposed adjacent to the lateral walls 14, and a generally flat part 120 disposed between the lateral portions 121 and depressed a predetermined distance relative to the lateral portions 121. Each lateral portion 121 comprises a recess 1210 depressed downwardly therefrom and extending rearwardly a given distance from a front surface thereof and stopped at a location adjacent to a rear surface thereof. The lower wall 13 is generally flat, and comprises a pair of second receiving slots 130 rearwardly extending a distance from a front surface thereof, and a pair of ribs 131 formed thereon with a dimension along the mating direction for providing reliable connection when assembled to the metal shell 5. Each lateral wall 14 forms a guiding surface 141 by slantwise cutting a front portion thereof for guiding an insertion of a complementary connector. Further, each connecting portion 11 rearwardly extending from two lateral walls 14 of the base portion 10 comprises a guiding slit 110 formed at a lower position of the inner wall thereof and extending along a back-to-front direction adjacent to the rear side of the passageways 15 for guiding an insertion of the printed circuit board 3, a securing slit 113 formed at a upper position of the outer wall thereof, and a pair of stopper portions 111 disposed at two sides of the securing slit 113 and outwardly extending from the rear edge of the connecting portion 11. In a preferred embodiment, a strip rib 1100 is formed in the guiding slit 110 for reliably retaining the printed circuit board 3 therein. Additionally, one of the pair of the stopper portions 111 only extends beyond a lateral surface of the connecting portion 11, the other of the pair of the stopper portions 111 extends beyond the lateral surface and the upper surface of the connecting portion 11, thereby forming a step structure (not labeled) for allowing the metal shell 5 to slide through. Further, the insulative housing 1 comprises a narrow slot 112 forwardly extending s predetermined distance from a rear surface of the connecting portion 11 toward the base portion 10. Obviously, in a preferred embodiment, the front portion of the base portion 10 with a U-shape cross-sectional view, which comprising the front portion of the upper wall 12 where the slots 16 are formed, the mating space 17 and the front portion of the lateral walls 14, is regarded as the mating interface of the present invention.
The first shell 50 comprises a frame-shaped main portion 51, a generally U-shaped extending portion 52 rearwardly extending from the main portion 51, and an reinforcing portion 53 rearwardly extending from middle of a rear edge of the extending portion 52. The main portion 51 comprises a top wall 510, a bottom wall 511 opposite to the top wall 51, and a pair of sidewalls 512 connecting with the top wall 510 and the bottom wall 511. The top, bottom walls 510, 511 and sidewalls 512 together define a receiving cavity 56 for receiving the insulative housing 1 therein. The top wall 510 comprises a pair of lateral protruding portions 5100 disposed in alignment with the lateral portions 121, and a flat portion 5101 depressed a predetermined distance towards the receiving cavity 56 and stepped relative to the lateral protruding portions 5100 and aligned with the flat part 120. Each lateral protruding portion 5100 forms a pair of resilient tabs 5103 bended into the receiving cavity 56 for sliding across the recess 1210 of the lateral portion 121 and preventing the metal shell 5 to be pulled out from the insulative housing 1. The bottom wall 511 comprises a pair of openings 5110 for engaging with the complementary connector. Each sidewall 512 comprises a second resilient tab 5120 formed adjacent to the rear surface thereof and aligned with the securing slit 113 for reliably fixing the insulative housing 1 with the metal shell 5. Both the top wall 510 and the bottom wall 511 all form a plurality of apertures 54 located adjacent to the rear edge thereof.
Additionally, The first shell 50 further comprises a pair of tongue portions 55 respectively extending rearwardly from a rear surface of the lateral protruding portions 5100. Each tongue portion 55 comprises a rectangular aperture 550 disposed in middle thereof. The extending portion 52 with a U-shape cross-sectional view, comprises a lower wall 520 rearwardly extending from the bottom wall 511, a pair of lateral walls 521 opposite to each other and spaced from the lateral walls 512 along the mating direction, and a rear wall 522 with lower height. The lower wall 520, the pair of lateral walls 521 and the rear wall 512 together defines a cavity (not labeled) communicated with the receiving cavity 56. Each lateral wall 521 comprises a pair of rectangular holes 5210. The rear wall 522 defines a cutout 5220 at middle thereof, where the reinforcing portion 53 rearwardly extends therefrom. The lower wall 520 forms a plurality of retentive ribs 5200 extending along the mating direction. Noticeably, the top surface of the rear wall 522 is lower than that of the lateral walls 521.
Then, the printed circuit board 3 is inserted into, and engaged with the insulative housing 1 due to a guiding of the guiding slits 110. During this insertion process, the soldering portions 212 of the tail portions 21 of the first and second terminals 20, 24 are soldered with the first and second pads 30, 31 for ensuring a reliable connection between the first and second pads 30, 31 and the tail portions 211 of the first and second terminals 20, 24, and the printed circuit board 3 is reliably retained in the guiding slits 110 by means of the strip ribs 1100 abutting against one surface of the printed circuit board 3, and obstructed from being inserted excessively by the blocks 1101. Next, the cable 4 is soldered with the printed circuit board 3. The conductors 40 are respectively and electrically connected with the third pads 32.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5547405||Sep 23, 1994||Aug 20, 1996||Itt Industries Limited||Crosstalk suppressing connector|
|US5626497||Jun 12, 1995||May 6, 1997||Molex Incorporated||Modular jack type connector|
|US6206734 *||Jan 12, 2000||Mar 27, 2001||Dan-Chief Enterprise Co., Ltd.||Low crosstalk connector|
|US6371793 *||Aug 24, 1998||Apr 16, 2002||Panduit Corp.||Low crosstalk modular communication connector|
|US6428362 *||Jun 6, 2000||Aug 6, 2002||Adc Telecommunications, Inc.||Jack including crosstalk compensation for printed circuit board|
|US6579127||Mar 22, 2001||Jun 17, 2003||Stewart Connector Systems, Inc.||High frequency electrical connector assembly such as a multi-port multi-level connector assembly|
|US6964587||Nov 10, 2002||Nov 15, 2005||Bel Fuse Ltd.||High performance, high capacitance gain, jack connector for data transmission or the like|
|US7037140 *||Nov 29, 2004||May 2, 2006||Ortronics, Inc.||Dual reactance low noise modular connector insert|
|US7175478 *||Sep 16, 2005||Feb 13, 2007||Ela Medical S.A.S.||Modular electric terminal connector, in particular for a mono-body probe of defibrillation|
|US7270551 *||May 30, 2001||Sep 18, 2007||Adc Gmbh||Distributor module for use in telecommunications and data systems technology|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7670147 *||Oct 16, 2008||Mar 2, 2010||Elka International Ltd.||Capacitance circuit board signal-adjusting device|
|US7780458 *||May 23, 2008||Aug 24, 2010||Hosiden Corporation||Cable plug assembly with internal circuit board|
|US7794290||Jul 21, 2009||Sep 14, 2010||Adtran, Inc.||Communications connector configured for low crosstalk|
|US7798853 *||Apr 30, 2009||Sep 21, 2010||Hon Hai Precision Ind. Co., Ltd.||USB connector having noise-suppressing device|
|US7857636 *||Dec 11, 2009||Dec 28, 2010||Hon Hai Precision Ind. Co., Ltd.||Cable connector assembly with an improved printed circuit board|
|US7955124 *||Dec 11, 2009||Jun 7, 2011||Hon Hai Precision Ind. Co., Ltd.||Cable connector assembly with an extra connector to supply power|
|US8052430 *||Jun 9, 2008||Nov 8, 2011||Hon Hai Precision Ind. Co., Ltd.||Cable assembly having connector with interior printed circuit board facilitating termination|
|US8174847 *||Feb 20, 2009||May 8, 2012||Hosiden Corporation||Shield case and circuit board assembly|
|US8437469||Jan 25, 2010||May 7, 2013||Adtran, Inc.||Electrical protection device configured to reduce crosstalk caused by fuses|
|US8801469 *||Aug 2, 2012||Aug 12, 2014||Hon Hai Precision Industry Co., Ltd.||Electrical connector having a housing with different dielectric constant|
|US20120164886 *||Dec 22, 2011||Jun 28, 2012||Hon Hai Precision Industry Co., Ltd.||Lower profile electrical connector assembly|
|US20120287343 *||Oct 25, 2011||Nov 15, 2012||Openpeak Inc.||Display system|
|US20130034995 *||Feb 7, 2013||Hon Hai Precision Industry Co., Ltd.||Electrical connector having a housing with different dielectric constant|
|WO2011150024A2 *||May 25, 2011||Dec 1, 2011||Molex Incorporated||Plug connector|
|U.S. Classification||439/76.1, 439/660, 439/941|
|Cooperative Classification||H01R13/6658, H01R13/2442, Y10S439/941|
|European Classification||H01R13/66D2, H01R13/24F|
|Aug 25, 2006||AS||Assignment|
Owner name: HON HAI PRECISION IND. CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WU, JERRY;REEL/FRAME:018220/0908
Effective date: 20060808
|Mar 26, 2012||REMI||Maintenance fee reminder mailed|
|Aug 12, 2012||LAPS||Lapse for failure to pay maintenance fees|
|Oct 2, 2012||FP||Expired due to failure to pay maintenance fee|
Effective date: 20120812